Vertical aerobic composting reactor and using method thereof

Abstract

The invention discloses a vertical aerobic composting reactor and a use method thereof. The vertical aerobic composting reactor comprises a reactor device and a feeding device installed at the upper end of the reactor device, a lifting feeding device for supplying materials to the feeding device is distributed on one side of the feeding device, a lifting hopper supplies materials through a material conveying device horizontally distributed below the lifting feeding device, and an auger feeding device for preliminary feeding is installed at the outer end of the material conveying device; the reactor device comprises a hollow cylindrical reaction tank which is vertically arranged, and the discharging device comprises a hollow cylindrical discharging barrel. According to the invention, from the step of mixing compost initial materials in proportion to the step of putting the mixed materials into the material conveying device, the mixed materials are conveyed into the feeding device from the material conveying device by the lifting feeding device, all the materials are designed to be of a closed structure, discharged odor and harmful gas are directly treated by the odor treatment device, and meanwhile, the feeding process is automatic. The discharging device discharges the lowermost layer of materials in a downward moving mode through the material plate, layered discharging can beachieved, and the situation that the composting state is disordered is avoided.

Description

technical field [0001] The invention relates to the technical field of organic solid waste disposal and resource utilization, in particular to a vertical aerobic composting reactor and its use method. Background technique [0002] Composting technology is widely used in the harmless treatment of organic waste such as livestock and poultry manure, waste generated in animal husbandry and fishery production processes, kitchen waste, agricultural and forestry production waste, and sludge from urban sewage treatment plants, and is converted into organic fertilizers. A technology, currently composting is usually accomplished using vertical aerobic composting reactors. [0003] The vertical aerobic composting reactor is composed of a feeding system, a stirring system, an aeration system, an odor treatment system, and a material discharge system. The air is blown into the middle, the waste gas is collected and processed in the upper part, and the compost is taken out from the botto...

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Problems solved by technology

If the ventilation effect is not good, the temperature cannot be controlled within a reasonable range

[0006] Secondly, the current material discharge system generally uses a cage discharge machine to discharge materials, because the bin-type aerobic composting reactor needs to load and discharge materials every day according to the composting treatment cycle (10 days), and the internal materials should be processed according to the composting state. Divided into 10 layers, the materials discharged every day should be the same batch of materials that were put into the reactor on the same day at that time, but the discharge material system of the stirring cage obviously cannot be discharged in layers, which will cause the materials in the warehouse to be close to the position of the stirring cage The material is discharged preferentially, which in turn causes the composting state of the material in the bin at this position to be disrupted, and the discharge includes materials that have not been processed for 10 days and meet the discharge standard

[0007] At the same time, at present, from the proportioning and mixing of the initial composting materials to putting the mixed materials into the upper hopper, and then from the upper hopper to the reactor through the feeding system, all of them are designed in an open structure, and the odor and harmful The gas directly pollutes the environment, and also affects the health of workers. At the same time, the feeding process is currently fully manual. Using a shovel to put the mixed materials into the feeding hopper, the work intensity is high

[0008] In addition, during the operation of the reactor, since the stirring blades in the prior art generally have a cantilever beam structure, due to the high material density inside the reactor, the stirring blades are prone to bending and breaking, which causes the traditional vertical reactor to frequently Maintenance, interruption of production, etc.

[0009] Finally, the particles of compost materials are large and uneven, and there is inevitably a certain degree of anaerobic fermentation in the process of aerobic composting, which affects the fermentation effect

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